Paint mixing device



A118 5, 1958 M. MERMELsTl-:IN 2,846,201'

PAINT MIXING DEVICE Filed Oct. 27, 1955 2 /Z I INVENTOR /c/' 3 y @WPI/5/YHPMEZJE//Y United States Patent PAINT MIXING DEVICE MorrisMermelstein, Schodack Center, N. Y. Application October 27, 1955, SerialNo. 543,045 v 3 Claims. (Cl. 259--72) This invention relates to paintmixing machines, more particularly to machines that mix paint by shakinga can of paint violently and rapidly.

Mixing devices presently in use are heavy machines. The can of paint issecured to a platform that is mounted i so as to move in a circular pathin the vertical plane of the machine to give, in effect, an up-and-downshaking of the can.

One object of the present invention is to provide a mixing machine whichwill shake a can of paint in a manner that there is no single plane ofshaking and the paint will be more rapidly mixed while entraining lessair.

A further object is to provide a single and inexpensive paint mixerespecially one that would be desirable in the small shop.

A yet further object is to provide a paint mixer that may be powered byan electric hand drill such as is conventionally found in homeworkshops.

Other and further objects and advantages will appear from the followingspecification taken with the accompanying drawing in which likecharacters of reference designate similar parts in the several views,and in which:

Figure l is a perspective view of the device.

Figure 2 is a fragmentary detail section of the driving connection takenon line 2-2 of Figure l.

Figure 3 is a fragmentary view, partly in section, of a device poweredby a hand drill.

As will be seen from Figure 1 an L-shaped frame element, 1, carries anelectric motor, 2, with its axis generally horizontal. A paint canholding socket, 3, is held in the L-shaped frame by spring elements 4and 5, so that the element 3 may be said to lioat in frame element 1.

Mounted on the side of can holding element 3 is a cylindrical boss, 6.

Within boss 6, as seen in Figure 2, is a ball bearing, 7, backed up byan abuttrnent element, 8, which may be of wood, plastic or rubber.

The motor, 2, is provided with a shaft, 9, having an offset endterminating in a ball, 10, of a size to snugly fit the interior of theinner race of ball bearing 7, forming a ball and socket, universalconnection between the holding element 3 and shaft 9.

A strap, 11, is provided to hold a can, 12, in place. This strap may, ofcourse, be adjustable and is preferably of strong elastic.

The spring elements 4 and 5 are preferably of fabric and rubber, similarto automobile tire material. Although they may be made of other suitableflexible springlike material such as spring metal, in which last casethey would need to be somewhat longer than the rubber springs.

In operation a can of paint is placed in the holder 3, bottom up and themotor is started. Ball is driven crankwise. This circular motion of theball 10 causes the holder 3 to move with what may be termed a freemotion, since boss 6 is not at the center of gravity of the movableparts 3, 4, 5 and including the can of paint.

The can of paint will clearly be shaken in several diierent verticalplanes. That is, it will rock and forth in a direction parallel to theplane through the motor 2 and holder 3, due to the up and down motionimparted to boss 6; it will vibrate in a plane at right angles to themotor shaft 9 due to the circular motion of boss 6; and it will rotateabout its own axis due to the horizontal motion imparted to boss 6,which lies at the circumference of holder 3. The net result of theseseveral motions is indeterminate and will, of course, vary widely frominstant to instant, and will vary with changes of location of the centerof gravity of the can of paint as the pigment becomes uniformly mixedwith the vehicle.

The device of Figure 3 is the same as that of Figure l except that themotor 2' is a portable electric drill, and the shaft 9 is mounted inchuck 2" as though it were a drill. The portable electric drill 2 isfastened securely to L-shaped support 11 by any suitable means. Themeans shown in Figure 3 are straps 12. L-shaped support 11 is mounted onframe element 1 by suitable means which are shown in Figure 3 as bolts13. If adjustment of the support 11' on frame element 1 is required,appropriate holes may be made to receive bolts 13.

In regard to the abuttment element 8, it will be noted that during thefree motion of the support 3 with its can of paint, when the device isin motion, the ball lil will from time to time move axially of bearing7. Abutment element 8 cushions the axial thrust of ball 10 so that thedevice will not be excessively noisy. Also the cushioning effect softensthe hammering effect of the abutment axially on shaft 9.

It will thus be seen that theobjects hereinbefore set forth may readilyand eiiiciently be attained and, since certain changes may be made inthe above construction anddifferent embodiments of the invention couldbe made without departing from the scope thereof, it is intended thatall matter contained in the above description or shown in theaccompanying drawings shall be interpreted as illustrative and not in alimiting sense.

It is also to be understood that the following claims are intended tocover all of the generic and specific features of the invention hereindescribed, and all statements of the scope of the invention which, as amatter of language, might be said to fall therebetween.

Having described my invention what I claim as new and desire to secureby Letters Patent is:

l. A paint mixing device, comprising a frame, a socket adapted toreceive a container of paint material to be mixed, means connected tosaid socket adapted to removably secure said container to said socket,exible means connecting said socket to said frame at two points, a motormounted on said frame having a shaft generally aligned normally to thevertical axis of said socket, said two points lying on oposite sides ofsaid shaft on a line that is diagonal to the longitudinal axis of saidshaft and to the vertical axis of said socket, a crank on the end ofsaid shaft, and aball and socket connection between said socket and saidcrank to impart universal Vibratory movement to said socket through saidflexible means.

2. A paint mixing device, comprising a frame, a socket adapted toreceive a container of paint material to be mixed, means connected tosaid socket adapted to removably secure said container in said socket,flexible members, diagonally opposed with respect to the vertical axisof said socket, one of which connects the top and the other the bottomof said socket to said frame, floatingly carrying said socket in saidframe for universal movement therein, and a single motor driven crankdrivingly connected to said socket by a ball and socket joint.

3. A paint mixing device, comprising an lr -shaped frame, a socketadapted to receive a container of paint 3. Y 4 to be mixed, a strapconnected to said socket adapted to said flexible means, and an abutmentelement in said removably secure said container therein, flexible meanssocket joint to cushion the axial thrust of said ball. connecting saidsocket to said frame at points of cnnech tion that lie in a plane thatis diagonal to the vertical References cned m the fue of thls Patent`axis of said socket, a motor mounted on said frame, a

UNITED STATES PATENTS single crank connected to said motor and beingdriv- 1 1,519,475 Almrfer Dec. 16, 1924 ngly connected to sald socket bya ball and socket 10mi 1,997,400 Wysocki Apr. 9, 1935 to impartuniversal movement to said socket through 2,230,325 Haver F6114, 1941

